GRAVES experimentation with GNU Radio

https://fas.org/spp/military/program/track/graves.pdf

Station : Biconal antenna with HackRF One and GNU Radio

View moon between -220 and -240 Hz
View plane between -100 and 100 Hz

Can be used to define satellite orbits with a more sensitive station

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Hey @michel, this is super interesting!

A couple of people in our community have tried this approach before and interestingly it yields some nice results and potentially valuable SSA information.

Can I ask your approximate location?

That could be improved and more specific to the frequency observed I guess.

That is also a big area that could be improved. I would argue that a rtl-sdr v3 with a nice LNA and filter could be better that your current reception setup.

Cheers!

My satnogs station :

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ARISS project Alpha mission

Presentation of the different types of radar and experimentation using GRAVES radar at the college in Marboz

Explanation of the doppler effect that will be encountered when communicating with ISS

Speed ​​calculation (simplified Doppler) of the planes received this morning using a Slim-Jim antenna, an SDR key and GNU Radio based on flowgraphs from satnogs.

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